TW200737648A - Battery charging circuit - Google Patents

Battery charging circuit

Info

Publication number
TW200737648A
TW200737648A TW095109286A TW95109286A TW200737648A TW 200737648 A TW200737648 A TW 200737648A TW 095109286 A TW095109286 A TW 095109286A TW 95109286 A TW95109286 A TW 95109286A TW 200737648 A TW200737648 A TW 200737648A
Authority
TW
Taiwan
Prior art keywords
amplifier comparator
sampling resistor
load device
pwm controller
battery charging
Prior art date
Application number
TW095109286A
Other languages
Chinese (zh)
Other versions
TWI312603B (en
Inventor
Tong Zhou
Kun Le
Original Assignee
Innolux Display Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Innolux Display Corp filed Critical Innolux Display Corp
Priority to TW095109286A priority Critical patent/TWI312603B/en
Priority to US11/725,912 priority patent/US7755328B2/en
Publication of TW200737648A publication Critical patent/TW200737648A/en
Application granted granted Critical
Publication of TWI312603B publication Critical patent/TWI312603B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current

Abstract

A battery charging circuit includes a load device, a power source device, a sampling resistor, and a feedback circuit. The power source device includes a pulse width modulated (PWM) controller, and a power output terminal providing a direct current (DC) according to a controlling signal generated by the PWM controller. The feedback circuit includes an amplifier comparator, a voltage divider, a transistor, and an optic coupler. A terminal of the sampling resistor is electrically connected to the ground. The other terminal of the sampling resistor is connected to the power output terminal via the load device, and also electrically connected to the noninverting input of the amplifier comparator. The voltage divider is connected to the inverting input of the amplifier comparator. The output of the amplifier comparator is connected to the PWM controller orderly via the transistor and the optic coupler. The PWM controller adjusts the controlling signal to change the voltage of the DC in order to steady the current flowing through the load device.
TW095109286A 2006-03-17 2006-03-17 Battery charging circuit TWI312603B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW095109286A TWI312603B (en) 2006-03-17 2006-03-17 Battery charging circuit
US11/725,912 US7755328B2 (en) 2006-03-17 2007-03-19 Charging circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW095109286A TWI312603B (en) 2006-03-17 2006-03-17 Battery charging circuit

Publications (2)

Publication Number Publication Date
TW200737648A true TW200737648A (en) 2007-10-01
TWI312603B TWI312603B (en) 2009-07-21

Family

ID=38517115

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095109286A TWI312603B (en) 2006-03-17 2006-03-17 Battery charging circuit

Country Status (2)

Country Link
US (1) US7755328B2 (en)
TW (1) TWI312603B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI636358B (en) * 2016-07-26 2018-09-21 廣東歐珀移動通信有限公司 Adapter and charging control method
US10291060B2 (en) 2016-02-05 2019-05-14 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Adapter and charging control method
CN111551811A (en) * 2020-05-26 2020-08-18 无锡友达电子有限公司 Detection circuit and device for output state of charging equipment and charging equipment

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100164437A1 (en) * 2008-10-24 2010-07-01 Mckinley Joseph P Battery formation and charging system and method
WO2013001682A1 (en) * 2011-06-30 2013-01-03 パナソニック株式会社 Analog measurement data detection system and battery voltage detection system
TWI464997B (en) * 2012-05-02 2014-12-11 Wistron Corp Battery charging circuit
CN105409274A (en) * 2014-05-12 2016-03-16 华为技术有限公司 Method for establishing correspondence between sector of base station and antenna, base station, and antenna

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656411A (en) * 1984-11-13 1987-04-07 Carlson Daniel P DC current controller for hydroset battery electrode electroformation
JP2686135B2 (en) 1989-03-28 1997-12-08 松下電工株式会社 Constant current power supply circuit
US5382893A (en) * 1991-05-16 1995-01-17 Compaq Computer Corporation Maximum power regulated battery charger
KR100263551B1 (en) * 1996-10-12 2000-08-01 윤종용 Secondary battery charging circuit
CA2246579A1 (en) * 1998-09-03 2000-03-03 Neil Simmonds Lithium-ion cell charging circuit with current-limiting transformer and linear integrated circuit
US7012405B2 (en) 2001-09-14 2006-03-14 Ricoh Company, Ltd. Charging circuit for secondary battery
JP2003259560A (en) 2002-02-28 2003-09-12 Mitsumi Electric Co Ltd Charging circuit
CN1564421A (en) 2004-03-17 2005-01-12 毛锦铭 Charger for lithium cell

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10291060B2 (en) 2016-02-05 2019-05-14 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Adapter and charging control method
US10566828B2 (en) 2016-02-05 2020-02-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Adapter and charging control method
TWI636358B (en) * 2016-07-26 2018-09-21 廣東歐珀移動通信有限公司 Adapter and charging control method
CN111551811A (en) * 2020-05-26 2020-08-18 无锡友达电子有限公司 Detection circuit and device for output state of charging equipment and charging equipment

Also Published As

Publication number Publication date
TWI312603B (en) 2009-07-21
US7755328B2 (en) 2010-07-13
US20070216370A1 (en) 2007-09-20

Similar Documents

Publication Publication Date Title
EP3685501B1 (en) Limiting average current in a peak-controlled boost converter
TWI498704B (en) Power converter capable of dynamically adjusting output voltage and power supply system using the same
US11387732B2 (en) Efficient use of energy in a switching power converter
TW200737648A (en) Battery charging circuit
US9178382B2 (en) Reversible buck or boost converter that determines boost output current from sensed boost input current
US10848061B2 (en) Switching power converter
US20140354231A1 (en) Efficient electronic cigarette charging device and method for using the same
TWI439032B (en) Converter circuits,controllers and methods for controlling converter
EP2602922A2 (en) Power management system for Universal Serial Bus
TW200620802A (en) Switch-mode power supply voltage regulator and methodology
TWI416851B (en) Voltage adjustment module and power supply device
TWI534436B (en) Simulation circuit of battery
EP1557679A3 (en) High side current monitor
WO2008105161A1 (en) Electric power source device
TW200504485A (en) Switching constant-current power device
US8854025B2 (en) Switching power supply
ATE318464T1 (en) POWER AMPLIFIER (PA) WITH IMPROVED POWER CONTROL
CN201408231Y (en) Zinc oxide lightning arrester direct current characteristic experimental high-voltage power supply
CN204707309U (en) A kind of light adjusting circuit based on PWM
JP5955432B1 (en) Electronic load device
TW200615730A (en) Circuit device with different input/output common mode voltages
CN103117659A (en) Current closed-loop control circuit for series load resonant converter
CN208401540U (en) A kind of anti-surge circuit for VPX power supply
CN104685440B (en) Device for producing direct current passing into load power-supply circuits
KR20100032961A (en) System for charging battery of notebook computer by controlling fet

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees